Air-conditioning system



Dec. 4, 1928,

C. A. M

AIR CONDITIONING SYSTEM Filed May 1926 3 Sheets-Sheet 1 l W w\\\\\\\\\\\\\\\w1 3 J T U 4 F i m 91H Q k 0 B E\ v .\\\\M\\\\ MM NCharles %.Moore Dec. 4, 1928. 1,693,855

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. c. A. MOORE I AIR CONDITIONING SYSTEM File M y 1926 3 Sheets-Sheet 524 Chafles A Moove @3315 W yaw Patented Dec. 4, 1928.

UNITED STATES CHARLES A. MOORE, OF EDINA, MINNESOTA.

arnponmrron'me SYSTEM.

Application filed May 1,

My invention relates to improvements in iir conditioning systems forhouses, ships and like structures, wherein perishable commodities arestored for greater and less periods '5 of time.

An object of the invention is to provide a system for effectivelyrefrigerating and ven tilating the chambers of structures of thecharacter above noted, said system embodying elements constructed andarranged, not

only to set up a thorough convective and diffused ventilated circulationof air within a chamber or chambers to which the system is applied, butalso to provide for the maxi- 1 mum space for storage and for maximumfacility in the handling of commodities within said space.

Another object of the invention is to supply a system, as abovedescribed, which is adapted to provide for the heating of a structureand as under refrigeration, to ventilate the structure as well.

More specifically, it is an object of the invention to employ a spacealong the floor of a chamber supplied, in part, to accommodate airconduits, also to use similar spaces along the sidewalls of the chamber,in conjunction With said space along the floor, for passageways servingto distribute air to the interior of the chamber, and further to providemeans apart from the chamber proper for circulating air in the chamberthrough said conduits and passageways, and for changing the temperatureof said air and freshening the same. With the foregoing and otherobjects-in View, which will appear in the following description, theinvention resides in the novel combination and arrangement of parts andin the details of construction hereinafter described and claimed.

In the drawings, Fig. 1 is a vertical, longitudinal, sectional viewof abuilding shown as equipped with an air conditioning system embodying myinvention, said view being taken as on the lines 11 of Figs. 2 and 3,

A parts of the sleepers, floor and side slats being broken away; Fig. 2is a vertical sectional view taken transversely of the building as onthe line 2-2 of Fig. 1; Fig. 3 is a fragmentary view similar to Fig. 2,the same being taken on the line-3 3 of Fig. 1, and Fig. 4 is a detailplan view of the coil chamber and fan room structure surmounting thebuilding, the roof of said structure being removed. Reference being hadto the accompanying 1926. Serial No. 106,145.

drawings, it will be observed that the building shown includes the usualsidewalls 10, end walls 11 and 12', main floors 13, and roof H, whereinprovision chambers are pro vided. Extending transversely of each mainfloor 13 are two series of sleepers 15, one series at one side of amedial longitudinal area of the floor and the other series at theopposite side thereof. Nailed across these sleepers 15 of each chamberand extending longitudinally of the building are spaced floor slats 16constituting a false floor. In each chamber riser timbers 17 rest attheir lower ends upon the outer extremities of the sleepers 15, saidriser timbers extending upward along the main sidewalls 10 to theceiling of the chamber. Across these timbers 17, wall slats 18 aresecured, the same comprising false sidewalls forming air passageways B,at the sides of the chamber, which passageways communicate with the airpassageway C formed between the. floor slats 16 and the main floor 13.

At the center of the roof 14 of this building is a structure comprisingan elongated housing 19, thesame being provided with a transversepartition 20, dividing the interior of the housing into a compartment Dand a room E. In the compartment D 'are staggered tiers of coils 21,through which any suitable temperature affecting medium may beconducted. A horizontal pipe 22 passing through the partition 20 bringsthe compartment D and room E into communication one with the other, afan 23 within the room being placed adjacent to the open end of saidpipe in said room.

Passing downward through the roof 14 of the building from the lowerportion of the compartment D, at the outer end thereof, is a duct ormain 2 4, which extends along the middle of the .ceiling of theuppermost chamber A to the inside of the endv wall 11 of the building.This main 24 thence extends downward through intervening floors 13 tothe floor 13 of the lowern1ost chamber included in the system. Upon thefloor 13 of each of "such chambers A and extending through the medialspace left between the inner ends. of the sleepers 15 area pair ofspaced conduits 25, each conduit of the pair communicating atone endwith said main 24 and being closed at the other end thereof. The outerside of each conduit25 is slotted longitudinally thereof as at 26, whichprovislon brings one conduit 25 into cornmuni cation, throughout itslength, with the floor passageway C at one; side of the middle of thechamber and likewise brings the other conduit into communication with.said pas- A second uprlght main 27 is employed E of the housing 19. On.the floor 13 of each along the inside of the endwall 12 mediallythereof, said main extending upward from the floor 13 of the lowermostchamber A,

through intermediate floors 13 to the ceiling of the uppermost chamber,thence along said ceiling toward the center thereof, thence upwardthrough the roof 14 of the building and thence into the upper portion ofthe fan room chamber A and between the spaced conduits 25 therein, is aconduit 28 formed at its upper side witha slot 29 extendinglongitudinally thereof. Each of these conduits 28 communicates at oneend thereof with the main 27, the other end being closed.

Produce for storage within a given chamber A is readily trucked over thefalse floor formed by the floor slats 16, and over the conduits 25 and28, foot lates (not shown) or other conduit protecting means beingemployed in the event that the conduits them selves are so constructedas to be unable to withstandan appreciable weight. The, produce isstacked in tiers stopping short'of the ceiling of the chamber andspaced. apart from the wall slats 1'8 and above the slot 29 in. theconduit 28. ,7 When it is desired to refrigerate the stored produce, arefrigerating medium is conveyed through the'coils 21 in the compartmentD of the housing 19 and to augment the chilling effect of such medium insaid coils, tiers thereof, indicated at 21 (Fig. 4) are permittedtoffrost over to form bafile walls for directing air in a circuitouspath in its passage through said compartment. The fan 23 is driven by afan motor 30 in direction blowing into the pipe 22. Thus driven, saidfan withdraws.

air, through the fan room E, from the main 27 and the conduits 28connected therewith and forces such air into the coil compartment D,through the main 24 and into the conduits 25 connected therewith. Inpassing through the coil compartment D, theair is chilled and n thiscondition is forced outwardly through the slots 26 in the conduits 25.Entering the passageways C underthe false floor slats 16, a part of thechilled air filters upward between the slats 16 about the lading on thefalse floor, the remainder thereof being urged into the side passagewayB, where it is aided in its ascent along the relatively warm sidewalls.10 and froinwhich side passageways said air "filters through the sideslats 18 into the lading space. In opposition to the ressure built uptoward the sidewalls o the building through the egress of air from flieconduits 25 is the suction-caused by the fan 23 at the slots 29 in theconduits 28. This suc- !circulation of chilled air is setup within the.chambers A, suchcirculation being augmented under the natural laws atthe sides of said chambers.

When it is desired to heat the produce stored within the chambers A,steam or other heating medium is conducted through the coils 21 inthecoil compartment D and the rotation of the fan 23 reversed so that itwill draw air through the pipe 22. Thus rotating the fan draws air fromthe coil compartment D wherein said air is heated, thence it forces saidheated air from the fan room E through the main 27 to the conduits 28and upwardly out of the slots 29 therein. Said fan 23 also draws airfrom the floor passageways G into the conduits 25, through the main 24,thence back into said coil compartment D. The heated air risingnaturally from the conduits 28 and augmented by the force of the fan 23asoends through the space left between the stacked produce. Thencespreading' along the ceilings of the chambers A and descending bygravity between the produce containers said air, now more or lesscooled, is urged downward through the false floors and drawn along thefloor passageways G into the conduits25 by the sucking action of the fan23. In this connection, attention is invited to the fact that the air inthe side passageways B' along the relatively cold side walls 10 has thenatural tendency to fall by gravity taking air into the descendingstreams between the side slats 18. These descending streams of air uponentering into the floor passageways C are forcefully affected by thesuction at the slots 26 in the conduits 25 in said passageways C. Thus,it will be understood that, under heating as well as underrefrigeration, a thorough connective and diffused circulation of air isset up within the chambers A. In the fan room E is an upright pipe 31extending from a point near the floor to a point near the ceiling, saidpipe'being fitted with a horizontal branch 32 opening through one sideof the housing 19 and further fitted with a damper 33 near its upper endand with a damper 34 near the lower end thereof. Within the coilcompartment D is a similar upright pipe 35, similarly fitted withabranch 36 and dampers employing the system for refri poses, thecirculatin air may to ventilate the cham crating pure ffeshened 37 and38. When ers A by admit'ting air, 1 under the suction of fan 23, intothe'fan air may be ading passa frigeration, theair in the system is toolow in percentage of humidity with the dampers 33 and 37 open, thecondition may be corrected by closing said dampers and opening thedampers 3t and 38. Under this adjustment of dampers warm air from theoutside is admitted into the lower part of the fan room E under theinflowing colder air with the result that the humidity is increased.Further. the direct air in the lower part of the coil compartment D isremoved there from. Accordingly, to meet other circumstances the dampers34, 35, 37 and 38 are appropriately adjusted.

Changes in the specific form of my invention, as herein disclosed, maybe made within the scope of what is claimed without departing from thespirit of my invention.

Having described my invention, what I claim as new and desire to protectbyLetters Patent is:

1. In combination with a structure forming a provision chamber, a falseperforate floor andfalse perforate sidewalls for said chamber, the sameforming intercommunicateways at the bottom and sides of the chamber, ahousing surmounting said structure, an air feed main depending from saidhousing into said'chamber,-a pair of spaced feedconduits branching offfrom said feed main and extending in parallelism along the main floor ofthe chamber medially thereof and parallel with said false sidewalls,each conduit being formed at its outer side with a slot extendinglongitudinally thereof and opening'beneath the level of said falsefloor, an upright air return main leading from said chamber to saidhousing. a return conduit communicating with said return main anddisposed between said feed conduits, said return conduit being formed atits upper side with an entry slot extending longitudinally thereof, afan within the housing for drawing air thereinto from the return mainand for forcing air into said feed main, means within the housing forreducing the temperature of air passing therethroug-h, said housinghaving means for admitting outer, air thereto on the suction side of thefan andimeans to permit the escape of air to the outside from thepressure side of the fan.

2. In combination with a st'ructureforming a provision chamber, a falseperforate floor and false perforate sidewalls. for said chamber, thesame forming intercommunicating passageways at the'botto n and sides offloor, each of said conduits the chamber, a housing segregated from saidchamber, an air feed main leading from said housing to said chamber, apair of spaced feed conduits branching otl' from said feed main andextending in parallelism along the main floor of the chamber mediallythereof and parallel with said false sidewalls, each of said conduitsopening at its outer side beneath the level of said false floor, areturn main leading from said chamber to said housing. a return conduitcommunicating with said return main and disposed between said feedconduits, said return conduit opening at its upper side for the entry ofair thereto from said chamber. a fan within the housing for drawing airthereinto from the return main and for forcing it into said feed main,and

means within the housing for reducing the temperature of the air passlngtherethrough.

3. In combination with a structure forming a provision chamber, a falsefloor in said chamber stopping short of the sidewalls of the chamber, apair of spaced parallel feed conduits extending longitudinally of thechamber medially thereof along the main floor, each of said feedconduits opening at its outer side beneath the false floor, a returnconduit disposed between said feed conduits and opening at the topthereof for the entry thereto of air from the chamber, said false floorproviding an air passagewa at the bottom of the chamber extending romthe medially disposed feed conduits to the sides of the chamber, a faninterposed between the terminals of said feed and return conduits forsetting up a circulation of air through said conduits and within saidchamber, and means to which the circulating air is exposed for thepurpose of refrigerating the same.

4. In combination with a structure forming a provision chamber, a falseperforate floor in said chamber, a pair of spaced parallelconduits'extending lon 'tudinally of the chamber medially thereo alongthe main floor, each of said conduits opening at its outer side beneaththe false floor, another conduit disposed between said pair of conduitsand opening at the top thereof into said chamber, a fan interposedbetween the ter- 'minals of said first conduits and said second conduitto set up a circulation of air therethrough and cause a convective anddifl'used movement of air within said chamber, and temperature aifectingmeans segregated from said chamber and associated with said conduits,the air circulating in said conduits being subjected to said means.

5. In combination with a structure for1nmg a provision chamber, a falseperforate floor in said chamber, a pair of spaced parallel conduitsextending; longitudinally of the chamber medially thereof along the mainopening at its outer side beneath the false 001', another conduitdisposed bet-ween said pair of conduits and opening at the top thereofinto said chamber, a fan interposed between the terminals of said firstconduits and said sec- 0nd conduit to set up a circulation of airtherethrough and cause a convective and diffused movement of air withinsaid chamber temperature afiecting means segregate from said chamber andassociated with said conduits the air circulating in said conduits beingsubjected to said means, and additional means associated with saidconduits for admitting air from without on the suction side of the fanto the air circulating in said conduits and further means for ermittingthe escape of air to the outside rom said conduits on-the pressure sideof said fan.

6. The combination with a storage chamber having a false perforatefloor, of adjacent air conduits extending along the main floor of saidchamber, one havin communitlie chamber cation at the side thereof withbeneath the false floor and the other having communication through thetop thereof with said chamber above said false'floor, one conduitproviding forthe ingress of air to the chamber and the other conduitproviding for the egress of air from said chamber, the terminals of saidconduits being remote from the storage chamber, a fan interposed betweenthe terminals of said conduits for setting up a flow of air through saidconduits and circulating the same in the chamber, andv means alsointerposed between the terminals of said conduits for affecting thetemperature of the air in its flow to said chamber.

In testimony whereof, I have signed my name to this specification,

CHARLES A. MOORE

